AD 2017-09-11
Effective 06/29/2017 · Published 05/25/2017
Airworthiness Directives; Bombardier, Inc. Airplanes
Summary
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted by reports of interruptions in the airstair door operation. This AD requires repetitive inspections and modification of the handrail hardware. We are issuing this AD to address the unsafe condition on these products.